FIGURE A2.2. SSM/I derived snow cover frequency (%) (left) and snow cover anomaly (%) (right)
based on 1987 - 2006 base period for the Northern Hemisphere (top) and Southern Hemisphere (bottom). It is generated using the algorithm described by Ferraro et. al, 1996, Bull. Amer. Meteor. Soc., vol 77, 891-905.